Pipeline critics hope the project will be rejected because they fear it could contaminate groundwater and contribute to pollution.

TransCanada has said the pipeline will have upgraded safety measures and should be allowed. The company has already built and is operating the southern leg of the pipeline between Oklahoma and Texas.

Young has been an outspoken opponent of the project, telling an audience at Capitol Hill late last year that he hopes the pipeline doesn’t come to pass.

“It’s going to put a lot of people to work,” he said at the time, “I’ve heard that, and I’ve seen a lot of people that would dig a hole that’s so deep that they couldn’t get out of it, and that’s a job too, and I think that’s the jobs that we are talking about there with the Keystone pipeline.”

The musician also criticized Ford MacMurray in his speech, saying the oil-rich area of Alberta looks “like Hiroshima.”

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